Malicious PDF — malware analysis report

Static analysis result for SHA-256 022bdc7edb2ae89a…

MALICIOUS

PDF

40.9 KB Created: 2020-07-28 20:38:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f2061d22a32e6924e4c95d89d61acb8a SHA-1: feec88c9039ae463d5d4d8008c753763bfca4fa3 SHA-256: 022bdc7edb2ae89ad1cfa6dbf14eeb64824a85e8d61b917a42f6c431127babc4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links pointing to redirector infrastructure, specifically 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, includes text related to 'Aston university sixth form', suggesting a lure. The presence of many external PDF links, including one to a Shopify domain, indicates a link farm or distribution mechanism for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=aston+university+sixth+form In PDF document text
    • http://files.themastectomystore.com.au/uploads/1/3/0/8/130814193/bidesezuzanot-digagurelagin-nowikap.pdfIn PDF document text
    • http://files.sharonscouts.org/uploads/1/3/2/3/132303310/tanekudumuj.pdfIn PDF document text
    • http://files.613studentrentals.com/uploads/1/3/1/1/131163533/9293b421.pdfIn PDF document text
    • http://files.romfordhypnobirthing.com/uploads/1/3/1/3/131397971/tutawepuzuza-xevulamikosubub-tibaza.pdfIn PDF document text
    • http://files.danielnaujoks.com/uploads/1/3/0/9/130968993/givupuwizid_ridakusopezed_vixopofibole.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5940/4197/files/vawejubenabixopedazuvunat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9413/8268/files/35869639581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/84214185858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2459/6642/files/4902317998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6393/5129/files/86864821084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22650439267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9581/7382/files/pizapowuved.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/34946311230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/15591684621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5992/7448/files/83166354229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5465/1799/files/folami.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6421 4864 bytes
SHA-256: dc357014e97dd337909d0d68f5b764c62e3bd8d1b9b920ac00b64fc67fffae3e
font_01_sfnt_off00007487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7487 10000 bytes
SHA-256: 32201c3b7d62d4c56e63d6baeaf815da0cb3b191b2decf4ae98d55ac11807fd3

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